THE INFLUENCE OF LASER MILLING PROCESS PARAMETERS ON DEPTH OF CUT AND SURFACE ROUGHNESS

Laser beam machining (LBM) is one of the lately most used nonconventional machining processes. It is based on melting and evaporation of processed material. It can be applied to almost a whole range of materials. Lately, it has been increasingly used for mark-engraving materials, as well as for milling less demanding 3D shapes. This paper presents the results of research on the possibility of laser milling of plexiglass. The influence of the cutting speed, laser power and the radial step on the machined surface roughness and depth of the cut was analyzed. It was concluded that increase in radial step and cutting speed causes lover values of the depth of cut. Laser milling with higher laser pover leads to higher values of depth of cut. Influence of mentioned laser machining parameters on surface roughness of machined surface is obvious, but it is necessary to realize more detail investigation on this subject.